Originally Posted by
intuition
If Google sends n thousands of email telling people to buy now, I'd say z is pretty close to 1...
They don't even need to analyze the underlying stats, they just need to trigger enough purchases to empty the current fare bucket.
The saved examples I have are all for specific flights, so probably not thousands of people tracking an individual itinerary
but sure, there could be some self-fulfilling effect.
If I had to guess though, the emails are triggered when the "must book by" date of cheaper fare rules is about to expire.